Enables This command is available on the ExtremeSwitching X440-G2, X450-G2, X460-G2, and X465 series switches., and perpetual PoE to all ports; or fast PoE to all ports, or selected ports, for some platforms.
| fast | Deliver PoE power to devices at the time of switch power on without waiting for boot up based on last saved PoE state. The default is disabled. |
| ports | For fast PoE, specifies selecting ports. Available on X435 and X465 series switches. |
| port_list | For fast PoE, specifies the port list separated by a comma or -. Available on X435 and X465 series switches. |
| all | For fast PoE, specifies selecting all ports. Available on X435 and X465 series switches. |
| perpetual | Preserves PoE power delivery to devices during reboot. Perpetual PoE is a switch-wide setting. The default is disabled. |
You can control whether inline power is provided to the system by using the disable inline-power command and the enable inline-power command. By default, inline power provided to all ports is enabled. Additionally, you can opt to deliver PoE power to devices at the time of switch power on without waiting for boot up (fast PoE) based on last saved PoE state. Per-port fast PoE is available on certain platforms. You can also elect to preserve PoE power delivery to devices during reboot (perpetual PoE). The default for both PoE options is disabled.
Enabling inline power starts the PoE detection process used to discover, classify, and power remote PDs.
Disabling inline power using the disable inline-power command does not affect the data traffic traversing the port. And, disabling the port using the disable port command does not affect the inline power supplied to the port.

Note
Inline power cannot be delivered to connected PDs unless the switch is powered on.
Note
Although fast PoE is enabled globally through the enable inline-power fast command, port-specific configuration using enable inline-power fast ports port_list is still required to make this configuration effective at the port level.The following command enables inline power currently provided to all ports:
# enable inline-power
# enable inline-power perpetual
The following example turns on fast PoE for ports 1,2, and 5:
# enable inline-power fast ports 1,2,5
This command was first available in ExtremeXOS 11.1.
The fast and perpetual PoE options were added in ExtremeXOS 30.3.
Per-port fast PoE was added for ExtremeXOS 31.1.
The fast and perpetual options are only available on the ExtremeSwitching X435 and X465 series switches. Per-port fast PoE (using the ports and all options) is available on the X465 series switch only.